The chromosome ploidy number refers to the number of sets of chromosomes present in a cell or organism. In sexual reproduction, the ploidy number is halved during meiosis, which results in the formation of haploid gametes. The fusion of haploid gametes during fertilization restores the diploid number of chromosomes in the zygote.
Therefore, the process in which the chromosome ploidy number changes from 2n to 1n during meiosis. Meiosis consists of two cell divisions, meiosis I and meiosis II, which reduce the ploidy number from 2n to 1n.
In meiosis I, homologous chromosomes pair up and exchange genetic material through crossing over, resulting in the separation of homologous chromosomes. In meiosis II, the sister chromatids separate, resulting in the formation of haploid daughter cells.
Overall, meiosis is a crucial process in sexual reproduction as it ensures the proper distribution of chromosomes and genetic diversity among offspring.
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Identify and describe patterns of how air masses interact and change over time
Air masses interact and change over time in a variety of ways. The interactions between air masses form the basis of weather systems and global weather patterns.
Air masses move in response to pressure differences, temperature differences, and other factors. As air masses interact, they can change in temperature, humidity, and other characteristics. Air masses can also mix, creating fronts and other weather systems. As air masses move, they can bring wet or dry conditions, warm or cold temperatures, and other changes in the atmosphere.
Over time, these interactions can create longer-term shifts in global weather patterns, such as El Niño or La Niña. By studying how air masses interact and change over time, meteorologists can better understand and predict global weather patterns.
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Select all that apply for the following alternative pathway: C4 plants.
Multiple select question.
A)
mostly everywhere
B)
very hot, dry habitats
C)
sunny, tropical habitats
D)
occurs in sugarcane and corn
E)
occurs in cacti, jade plants, and pineapple
F)
fixes carbon dioxide into three-carbon molecules
G)
fixes carbon dioxide into four-carbon molecules
H)
fixes carbon dioxide into organic molecules at night
I)
allows for regular carbon dioxide uptake and water loss
J)
allows for sufficient carbon dioxide uptake and minimizes water loss
The alternative pathway in C4 plants involves several important characteristics that allow for efficient photosynthesis in arid environments. The correct option are B) very hot, dry habitats, C) sunny, tropical habitats , D) occurs in sugarcane and corn. G) fixes carbon dioxide into four-carbon molecules H) fixes carbon dioxide into organic molecules at night and J) allows for sufficient carbon dioxide uptake and minimizes water loss.
First, C4 plants are commonly found in plants such as cacti, jade plants, and pineapples that are adapted to dry conditions. Secondly, the pathway involves fixing carbon dioxide into organic molecules at night, which is known as crassulacean acid metabolism (CAM). This allows for plants to minimize water loss during the day by keeping their stomata closed and still be able to fix carbon dioxide for photosynthesis.
The alternative pathway in C4 plants also allows for sufficient carbon dioxide uptake. This is due to the presence of specialized mesophyll cells that have high levels of the enzyme PEP carboxylase, which can capture carbon dioxide even when levels are low. The captured carbon dioxide is then transported to the bundle sheath cells, where it is further processed through the Calvin cycle. This process allows for efficient use of carbon dioxide and minimal water loss through transpiration.
Overall, the alternative pathway in C4 plants is an important adaptation that allows for efficient photosynthesis in arid environments. It involves several important characteristics, including fixing carbon dioxide into organic molecules at night, specialized mesophyll cells, and efficient use of carbon dioxide. These adaptations help plants to survive and thrive in harsh, dry environments.
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1. Based on the model shown, what organisms should have the smallest population numbers in an ecosystem?
2. Based on the model, why is the producer level the largest level?
During filtration, anything that is small enough to pass through all three layers of the filtration membrane will become part of the filtrate. Sometimes, the least porous layer of this membrane becomes clogged and then glomerulonephritis may occur. What is the name of the most porous layer of the filtration membrane?.
The most porous layer of the filtration membrane is called the fenestrated endothelium.
This layer is made up of endothelial cells that have small pores or fenestrae, which allow for the passage of small molecules such as water, ions, and nutrients. These pores are around 70-100 nanometers in diameter, making them smaller than red blood cells but larger than most proteins.
In glomerulonephritis, inflammation can cause damage to the fenestrated endothelium, leading to a decrease in the rate of filtration and an increase in the size of molecules that are able to pass through the membrane. This can result in the accumulation of larger molecules in the bloodstream, leading to symptoms such as swelling, high blood pressure, and proteinuria.
It is important to note that the glomerular filtration membrane is composed of three layers, including the fenestrated endothelium, the basement membrane, and the podocytes. Damage to any of these layers can affect the rate and quality of filtration, leading to various kidney diseases.
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In Africa, elephant populations have declined due to poaching, which is illegally hunting elephants for their tusks. In the past, only about two percent of female elephants were born tuskless. A recent study found that 98 percent of the 174 female calves born in one national park had no tusks. Which of the following statements is supported by this mathematical representation?
A. Elephants without tusks are surviving and reproducing while elephants with tusks are not.
B. Elephants no longer need tusks because their habitats have been changing.
C. Female elephants do not need tusks to successfully rear their young.
D. Male elephants are growing tusks more quickly than female elephants are.
Natural selection selects beneficial alleles and and phenotypes, and increases their frequency in the population. Option A. Elephants without tusks are surviving and reproducing while elephants with tusks are not.
What is natural selection?
Natural selection is an evolutive force that favors an allele or act against it, depending on how the allele affects the fitness of individuals. It selects beneficial alleles and increases their frequency in the population.
The phenotype that expresses the best fitness results in higher survival, fertility, and reproductive rates. Aptitude -fitness- must be significant to the natural selection act in its favor.
Adaptation, acchieved by natural selection, is closely related to selective pressures.
Selective pressure is applied by different organisms or conditions that influence the survival rate of a certain phenotype. It influences the probability of a genotype leaving its gametes to the following generations.
In the exposed example,
Selective pressure ⇒ poachingoriginal phenotype ⇒ tuskednew phenotype ⇒ tusklessBeing tuskless increased the individuals' fitness so natural selection favored this new phenotype and increased its frequency in the population.
Option A. Elephants without tusks are surviving and reproducing while elephants with tusks are not.
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In three to five sentences, compare the geological processes we observe today to those that would have taken place throughout history.
It say its for biology but its not its for sciences
Please i need this fast if anyone can help me i will me alot for me
Geological processes that we observe today, such as volcanic eruptions, earthquakes, and erosion, are similar to those that would have taken place throughout history.
However, the scale and frequency of these processes may have varied over time.
For example, some geological processes, such as plate tectonics, have been ongoing for billions of years, while others, such as large-scale volcanic eruptions, may have been more frequent during certain periods in Earth's history.
Additionally, human activity has introduced new geological processes, such as pollution and climate change, that did not exist in the same way in the past.
Overall, the basic geological processes that shape our planet have been operating throughout Earth's history, but the specific details and intensity of these processes have changed over time.
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How do the chromosomes at the end of meiosis i compare with the chromosomes at the end of meiosis ii?
At the end of meiosis I, each chromosome still consists of two sister chromatids, but the number of chromosomes is reduced by half.
This reduction is due to the separation of homologous chromosomes, which are pulled to opposite poles of the cell during the first division. At the end of meiosis II, the sister chromatids finally separate, resulting in four haploid daughter cells, each containing a single chromosome. So, at the end of meiosis II, the chromosomes are in their haploid form, with only one chromatid per chromosome. In summary, the chromosomes at the end of Meiosis I are still composed of sister chromatids, while the chromosomes at the end of Meiosis II are single chromatids in each of the four haploid cells.
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The animals known as a mountain lion, panther, puma, and cougar are actually the same animal, puma concolor. because of their large range, the animal has acquired different names around the globe. scientists most likely determined that these organisms are the same species by comparing and noting the similarities between the
Mountain lions, panthers, pumas, and cougars are all names for the same species: Puma concolor. Scientists have been able to determine that these animals are the same species by comparing and noting the similarities between them.
For example, all of these animals have a tawny coloration and a characteristic black tip on their tails, as well as similar physical features, such as a muscular body, long tail, and a round head. Additionally, they all inhabit similar geographic ranges and share the same dietary habits.
Furthermore, the genetic data collected from these animals has revealed that they are all closely related and possess the same DNA structure. This data has allowed scientists to correctly classify this species and finally settle the debate of whether these animals are one and the same.
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complete question is :
The animals known as a mountain lion, panther, puma, and cougar are actually the same animal, puma concolor. because of their large range, the animal has acquired different names around the globe. scientists most likely determined that these organisms are the same species by comparing and noting the similarities between them. explain.
the following sequence of dna is part of the normal, wild-type gene. 3' atg cgg gta gtt agc cga tag 5' a deletion occurs during dna replication, causing the guanine shown in red to be removed from the nucleotide strand. what effect is this most likely to have on the final protein?
The sequence given is in the 5' to 3' direction and represents a segment of DNA that codes for a protein. The start codon "ATG" indicates the beginning of the coding region and the stop codon "TAG" indicates the end of the coding region.
The deletion of the guanine (G) from the sequence would result in a frameshift mutation since the deletion would shift the reading frame of the codons. This would cause all the codons downstream of the deletion to be different from the original sequence.
The new sequence would be: 3' atg cgg gta tta gcc gat ag 5'
The new codons downstream of the deletion would be different, which would result in a different amino acid sequence being translated. This could potentially alter the structure and function of the final protein. The effect of this frameshift mutation on the protein would depend on the specific location of the deletion and the resulting altered sequence of codons.
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you are reading a scientific paper regarding the relationships of the anatomical and behavioral characteristics of chimpanzees and their implications for early hominid evolution. you note that the authors refer to human ancestors as hominids. this implies that the researchers are relying on group of answer choices cladistic classifications of chimpanzees and humans. nonevolutionary classification of chimpanzees and humans. traditional classifications of chimpanzees and humans. an incorrect classification of human ancestors.
The researchers are relying on traditional classifications of chimpanzees and humans, as they refer to human ancestors as hominids. Option (C) is correct.
Hominid is a traditional term used to refer to members of the family Hominidae, which includes humans and their extinct ancestors. This classification is based on shared anatomical and behavioral traits, such as bipedalism and increased brain size, that distinguish hominids from other primates.
While cladistic classifications based on genetic and morphological data have provided more detailed information about the relationships between chimpanzees and humans, the term hominid is still commonly used in scientific and popular literature. Option (C) is correct.
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The complete question is:
'you are reading a scientific paper regarding the relationships of the anatomical and behavioral characteristics of chimpanzees and their implications for early hominid evolution. you note that the authors refer to human ancestors as hominids. this implies that the researchers are relying on group of answer choices
A) cladistic classifications of chimpanzees and humans.
B) non-evolutionary classification of chimpanzees and humans.
C) traditional classifications of chimpanzees and humans.
D) an incorrect classification of human ancestors.
Which of the following are types of adaptations of desert plants that enable them to survive and reproduce? (Choose all that apply.)
Flower adaptations
Stem and leaf adaptations
Behavioral adaptations
Root adaptations
The types of adaptations of desert plants that enable them to survive and reproduce are stem and leaf adaptations and root adaptations
What is adaptationBy changing throughout time in response to external forces, organisms can better survive and reproduce in their particular habitat. This process is known as adaptation. Morphological, physiological, and behavioral adaptations can all be the result of natural selection, genetic drift, or other processes.
The biological process of reproduction is how organisms create children that receive their genetic make-up. Most species reproduce by joining their male and female gametes to create a zygote, which then grows into a new person. The continuation of a species and the transmission of genetic features from one generation to the next depend on reproduction. Reproduction can take place in a sexual or asexual way.
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Hemoglobin is the protein in red blood cells that binds oxygen. If a mutation occurs in the DNA that codes for hemoglobin, the structure of hemoglobin can change. The change in structure of hemoglobin can then change the shape of red blood cells, and some mutations can cause red blood cells to become sickle-shaped.
Sickled red blood cells carry less oxygen than normal red blood cells. What does this demonstrate about mutations in the DNA that codes for hemoglobin?
A.
These mutations can change the structure of oxygen so that it does not bind to hemoglobin.
B.
These mutations decrease the amount of oxygen available to bind with hemoglobin.
C.
These mutations are unable to affect the structure and function of hemoglobin.
D.
These mutations can change the structure and function of hemoglobin.
The fact that sickled red blood cells carry less oxygen than normal red blood cells demonstrates that the mutations in the DNA that codes for hemoglobin can change the structure and function of hemoglobin.
The correct option is D.
What is hemoglobin?Hemoglobin is a protein that is found in red blood cells that carries oxygen from the blood to cells and tissues where they are needed.
The function of hemoglobin is related directly to its structure.
A mutation in the gene that codes for hemoglobin will result in adefor ation of the structure of hemoglobin, us rendering it unable to transport oxygen effieciently.
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Your colleague designed a common garden experiment to determine if desiccation (drying out) influences competition between a native alga and an exotic alga. The design includes four plot types: dry with native only, dry with exotic only, dry with both algae, and wet with both algae.
When grown together on dry plots, the native grew well while the exotic went extinct. When grown together on wet plots, the exotic grew well while the native went extinct. Both algae grew in dry plots when grown alone. You note that his experimental design is incomplete and, as a result, he cannot support one of the following conclusions. Which conclusion is NOT supported?
a. Dry habitats are part of the fundamental niche of the native alga.
b. Dry habitats are part of the fundamental niche of the exotic alga.
c. The native alga competitively excludes the exotic alga in dry habitats.
d. The exotic alga competitively excludes the native alga in wet habitats
These findings have crucial implications for understanding the effects of desiccation on competition among algae species. The correct option is d. The exotic alga competitively excludes the native alga in wet habitats
Based on the design of the experiment, it appears that your colleague is interested in understanding how desiccation, or drying out, affects competition between a native alga and an exotic alga. The experiment includes four different plot types, each with different combinations of the two types of algae and varying levels of moisture. Specifically, dry habitats are part of the fundamental niche of the exotic alga, meaning that this species is adapted to thrive in dry conditions.
Interestingly, the results of the experiment suggest that the exotic alga is actually better able to compete with the native alga in wet habitats, where both species are present. This means that in these conditions, the exotic alga is able to outcompete the native species and establish dominance.
Overall, these findings have important implications for understanding the impact of desiccation on competition between different algal species. They suggest that the exotic alga may have a competitive advantage in certain conditions, and that efforts to control its spread may need to take into account the effects of moisture levels on its growth and spread.
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What physiological adaptation helps annual plants whose climate has long periods of drought followed by brief periods of rain?
Why do ferns not grow as tall as gymnosperms and angiosperms?.
Ferns do not grow as tall as gymnosperms and angiosperms because they lack true vascular tissue and specialized support structures.
Vascular tissue, consisting of xylem and phloem, is responsible for transporting water and nutrients throughout the plant and providing structural support. Gymnosperms and angiosperms have evolved more efficient vascular tissue and specialized support structures such as lignified trunks, branches, and leaves, allowing them to grow taller and support more weight.
In contrast, ferns lack true vascular tissue and have a simpler structure that limits their ability to transport water and nutrients, as well as provide support. Ferns have underground stems called rhizomes that anchor the plant and absorb water and nutrients, but they are not as effective at supporting the plant's weight as the specialized structures found in gymnosperms and angiosperms.
Thus, ferns are typically smaller and grow closer to the ground, with few exceptions such as tree ferns, which have evolved specialized adaptations to support their height.
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Essay writer
A gene helps determine how the pigment melanin is distributed on human skin.
Having freckles or not having freckles are traits determined in part by this gene.
Write an explanation for why some people have one trait and other people have
the other. Be sure to use the terms allele and chromosome in your answer.
Answer:
Genes have different versions, called alleles. Alleles are one reason some people have freckles and others do not. A person who has freckles inherited alleles that produce freckles. A person with no freckles inherited different alleles that don't produce freckles.
Explanation:
That was the sample answer.
63 Identify the bird represented by the foot labeled W.
64 Explain how the webbing between the toes of bird Y could help a coastal bird survive.
Answer: The webbed toes on a coastal bird could help the bird if it needed to swim to find food or fall in the water since it is you know COASTAL Hope it helps:)
Explanation:
What parts of a cell is the sem most useful for examining?.
The Scanning Electron Microscope (SEM) is a powerful tool used to study the surface of a specimen in great detail. It is most useful for examining the exterior features of a cell, including the cell membrane, cytoskeleton, and extracellular matrix.
One of the major advantages of the SEM is its ability to provide high-resolution, three-dimensional images of a specimen. This allows researchers to study the surface features of cells and to visualize the spatial organization of subcellular structures. In addition, the SEM can be used to study the interactions between cells and their environment, such as the formation of cell adhesions or the uptake of particles by cells.
Overall, the SEM is a valuable tool for examining the surface features of cells and for understanding the interactions between cells and their environment. Its high-resolution imaging capabilities make it an essential tool for cell biology research.
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What prevents backwards flow of urine from the bladder into the ureters?.
The ureters enter the bladder obliquely and are surrounded by a muscular valve called the ureterovesical junction, which prevents the backwards flow of urine from the bladder into the ureters.
The ureters are muscular tubes that carry urine from the kidneys to the bladder. They enter the bladder obliquely, meaning that they do not enter the bladder at a right angle but at an angle that causes the ureter to be compressed when the bladder fills with urine.
Additionally, the ureterovesical junction, or the point at which the ureter meets the bladder, is surrounded by a muscular valve that contracts to prevent urine from flowing backwards into the ureters.
This valve, called the vesicoureteral valve, is made up of smooth muscle and is under autonomic control, meaning that it is regulated by the nervous system. The combination of the oblique angle of the ureter and the muscular valve at the ureterovesical junction helps to ensure that urine flows in one direction, from the kidneys to the bladder, and does not flow backwards into the ureters.
However, in some cases, such as with vesicoureteral reflux, the valve may not function properly, leading to the backwards flow of urine and potentially causing urinary tract infections and other complications.
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How did Avery's contributions to the understanding of heredity depend on the work of other scientists?
Answer:
Avery's contributions to the understanding of heredity depended on the work of other scientists, particularly Frederick Griffith. Griffith discovered that genetic material could be transferred between bacteria but did not know what that material was.
Avery and his colleagues expanded Griffith's work through experiments to identify the nature of the genetic material responsible for the transformation of bacteria. They purified various components of the bacteria and tested each one to see if it was responsible for the transfer of genetic information.
Their experiments showed that the genetic material responsible for transformation was DNA, not protein or RNA as some scientists had previously thought. Avery's work was groundbreaking because it provided the first direct evidence that DNA was the molecule responsible for transmitting genetic information from one generation to the next.
However, Avery's work depended on the contributions of other scientists. For example, Oswald T. Avery had previously conducted research on the bacterial transformation in the early 1940s. Avery and his colleagues had also benefited from the discovery of X-ray crystallography by Rosalind Franklin and Maurice Wilkins, which allowed them to examine the structure of DNA more closely.
In conclusion, Avery's contributions to the understanding of heredity were built on the work of other scientists who had made important discoveries before him. Without their work, Avery may not have conducted the experiments that led to the identification of DNA as the genetic material.
Explanation:
Neural transmission across a mammalian synapse is accomplished by _____.
Neural transmission across a mammalian synapse is accomplished by the release and binding of neurotransmitters. When an action potential reaches the end of an axon, neurotransmitter-containing vesicles fuse with the presynaptic membrane and release the neurotransmitters into the synaptic cleft.
The neurotransmitters diffuse across the synaptic cleft and bind to specific receptor proteins on the postsynaptic membrane, which triggers a change in the postsynaptic neuron's membrane potential.
This change can either excite or inhibit the postsynaptic neuron, depending on the type of neurotransmitter and receptor involved. After binding, neurotransmitters are either degraded by enzymes or reabsorbed by the presynaptic neuron, which terminates the signal.
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Read the following sentences from the text. "But some creatures have just a single cell, like an amoeba. They are called unicellular organisms. Other creatures, like us human beings, are collections of cells. These are called multicellular organisms. Multicellular organisms can range in size from brown algae to large animals like elephants and whales, which have trillions of cells. "
What can be concluded about cells based on this information?
The given text discusses the concept of cellular organization in living organisms. It explains that some organisms, such as amoebas, consist of just one cell, which are called unicellular organisms.
In contrast, more complex creatures like humans are made up of collections of cells and are called multicellular organisms.
The text also points out that multicellular organisms can range in size, from brown algae to large animals like elephants and whales.
This illustrates the diversity of living organisms and emphasizes the role of cells in building and sustaining life.
Overall, the text highlights the importance of cellular organization in the structure and function of living organisms.
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organisms show slowed growth during the:
spring
summer
autumn
winter
During the spring, microorganisms experience slowed growth due to the decrease in temperature and the increase in precipitation.
Here, correct option is A.
Cold temperatures can inhibit growth, while heavy rainfall can reduce the amount of available nutrients in the environment. During the summer, increased temperatures can cause microorganisms to slow their growth rate due to the lack of available energy for metabolism.
Additionally, the higher temperatures can also cause some microorganisms to become dormant or die. During the autumn, microorganisms may experience slowed growth due to the lower temperatures, which can inhibit the metabolic rate of the microorganisms, as well as the decrease in sunlight, which can reduce the amount of energy available for photosynthesis.
Therefore, correct option is A.
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What is the relationship between an organisms fundamental niche and it’s realized niche
The fundamental niche of an organism describes the full range of environmental conditions and resources that an organism can potentially use for survival and reproduction.
Its realized niche, on the other hand, is the niche that an organism actually occupies in an environment. This may be a smaller subset of its fundamental niche due to competition from other organisms, environmental changes, or other factors.
The realized niche of an organism is determined by the resources available and the ability of the organism to successfully utilize these resources. As a result, the realized niche of an organism may be much different than its fundamental niche.
Competition between species can lead to the exclusion of certain species from a certain area, resulting in a change in the realized niche of that species. Environmental changes, such as the introduction of a new predator or a decrease in available resources, can also lead to a change in the realized niche.
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Describe a laboratory-based experiment you could carry out to investigate the effect of temperature on the rate of feeding of dog whelks on barnacles.
Your answer should include references to the control of variables and the collection of quantitative data
A laboratory-based experiment could be carried out to investigate the effect of temperature on the rate of feeding of dog whelks on barnacles. The experiment could involve placing a number of dog whelks and barnacles into a large aquarium with a temperature control mechanism.
The aquarium would be divided into two sections, with one side heated and the other side kept at room temperature. The temperature in the heated section could be incrementally increased and the rate of feeding of the dog whelks on the barnacles monitored over time.
To ensure accuracy, the experiment should be repeated a number of times with different temperatures, and the results should be compared with those of a control group kept at a constant room temperature. The experiment should also be carried out in a controlled environment with other variables such as light, humidity and salinity held constant.
By measuring the rate of feeding of the dog whelks on the barnacles over time for each temperature, quantitative data could be collected in order to determine the effect of temperature on the rate of feeding.
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Examine the digestive system structures in the figure above. The highest rate of nutrient absorption occurs at location _____. 4 5 1 8.
Answer:
at the illeum
Explanation:
the illeum contains several villi and microvilli that increase surface area for absorption
Use the information to answer these questions about buying and selling of stocks.
1. Purchased shares of stock: 1000 shares of Nike at $24.50 per share
Current price of stock: $39.75 per share
Stock companies price per transaction: $9.99
What is your net profit from each stock transaction?
2. Purchased shares of stock: 800 shares of Panda Express at $13.50 per share
Current price of stock: $23.25 per share
Stock companies price per transaction: $10
What is your net profit from each stock transaction?
3. Purchased shares of stock: 1200 shares of Wal Mart at $35.50 per share
Current price of stock: $58.75 per share
Stock companies price per transaction: $12.99
What is your net profit from each stock transaction?
Answer: Net profit from each stock transaction:
First, calculate the cost of purchasing the 1000 shares of Nike:
1000 shares x $24.50 per share = $24,500
Then, calculate the revenue from selling the 1000 shares of Nike:
1000 shares x $39.75 per share = $39,750
The total cost of the stock transaction is:
$24,500 + $9.99 = $24,509.99
The total revenue from the stock transaction is:
$39,750 - $9.99 = $39,740.01
Therefore, the net profit from each stock transaction is:
$39,740.01 - $24,509.99 = $15,230.02
Net profit from each stock transaction:
First, calculate the cost of purchasing the 800 shares of Panda Express:
800 shares x $13.50 per share = $10,800
Then, calculate the revenue from selling the 800 shares of Panda Express:
800 shares x $23.25 per share = $18,600
The total cost of the stock transaction is:
$10,800 + $10 = $10,810
The total revenue from the stock transaction is:
$18,600 - $10 = $18,590
Therefore, the net profit from each stock transaction is:
$18,590 - $10,810 = $7,780
Net profit from each stock transaction:
First, calculate the cost of purchasing the 1200 shares of Wal Mart:
1200 shares x $35.50 per share = $42,600
Then, calculate the revenue from selling the 1200 shares of Wal Mart:
1200 shares x $58.75 per share = $70,500
The total cost of the stock transaction is:
$42,600 + $12.99 = $42,612.99
The total revenue from the stock transaction is:
$70,500 - $12.99 = $70,487.01
Therefore, the net profit from each stock transaction is:
$70,487.01 - $42,612.99 = $27,874.02
Explanation:
Luther Burbank bred potatoes that combined a variety of useful traits. One of Burbank's breeding techniques was hybridization. Which cross of
potato plants would have been MOST USEFUL for producing a useful strain by hybridization?
O A a disease-resistant plant crossed with a plant that is not disease resistant
O B. A plant that is not disease resistant crossed with a plant that produces a low volume of food
O c. A disease-resistant plant crossed with a plant that produced a low volume of food
O D. A disease-resistant plant crossed with a plant that produced a high volume of food
The most useful cross of potato plants for producing a useful strain by hybridization would be a disease-resistant plant crossed with a plant that produced a high volume of food.
Here, correct option is D.
Luther Burbank, a renowned plant breeder, developed this hybridization technique to combine a variety of useful traits in the plants he bred. By crossing a disease-resistant plant with one that produced a high volume of food, Burbank was able to create a plant that provided both disease resistance and high yield potential.
This combination of traits was invaluable for increasing the food production of potatoes and making them more accessible and affordable for people around the world. With this hybridization technique, Luther Burbank was able to improve the quality and yield of potato production, making potatoes an important part of the global food system.
Therefore, correct option is D.
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Study the table based on this information, what inference can be made? question 4 options: both species are cold-blooded. both species are warm-blooded. species a is cold-blooded and species b is warm-blooded. species a is warm-blooded and species b is cold-blooded.
Based on the given table, we can infer that Species A is warm-blooded and Species B is cold-blooded. Here option D is the correct answer.
The table provides information about the body temperature of the two species, and we know that warm-blooded animals can maintain a constant body temperature regardless of the environment, while cold-blooded animals have a body temperature that fluctuates with the temperature of their environment.
Since Species A is classified as warm-blooded, we can conclude that it has the ability to regulate its body temperature internally, which is a characteristic of endothermic animals. This could mean that Species A may have a higher metabolic rate than Species B, which allows it to generate heat to maintain its body temperature.
On the other hand, since Species B is classified as cold-blooded, it means that its body temperature is dependent on the temperature of its environment, which is a characteristic of ectothermic animals.
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Complete question:
Species Body Temperature
A Warm-blooded
B Cold-blooded
Study the table based on this information, what inference can be made?
A - both species are cold-blooded.
B - both species are warm-blooded.
C - species a is cold-blooded and species b is warm-blooded.
D - species a is warm-blooded and species b is cold-blooded.
When did the first homo sapiens arrive in the americas?.
Answer:
18,000 years ago
Explanation:
Most archaeologists accept that humans were in the Americas 18,000 years ago